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Old 06-16-2010, 11:32 AM   #1
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How to build a carring beam


I hav e an older cottage which is measures 22 x 30 feet. The floor joist are rough 2x6 spaced at 16 inch centers.There are 5 carring beams running the 22 ft span , made of 4 2x8 laminated together. I want to jack up the cottage and run 3 beams the 30 foot lenght .Question is what can I make them out of ( would prefer to laminate pressuretreated lumber together ) and what spacing would I need for the supports.
Thanks any help would be appricated.

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Old 06-16-2010, 03:07 PM   #2
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How to build a carring beam


Quote:
Originally Posted by trapper1953 View Post
I hav e an older cottage which is measures 22 x 30 feet. The floor joist are rough 2x6 spaced at 16 inch centers.
1
There are 5 carring beams running the 22 ft span , made of 4 2x8 laminated together.
2
1 each joist is 30' long?

2 more than 2 beams supporting the end of each joist is very complex to calculate but if you know what wood it is and what the deflections are between supports the whole thing might be reverse-engineerable. Knowing the dead weight of the whole cottage is probably useful.

Also try
http://civilengineerblog.com/forum/e...udents/page-1/

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Last edited by Yoyizit; 06-16-2010 at 03:37 PM.
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